1. Department of Dental Materials, Islamic International Dental College, Riphah University, Islamabad, Pakistan
2. Department of Pediatric Dentistry, College of Dentistry, Foundation University, Islamabad, Pakistan
3. Department of Science of Dental Materials, Avicenna Dental College, Lahore, Pakistan
4. Department of Operative Dentistry and Endodontics, Shifa College of Dentistry, Shifa Tameer e Millat University, Islamabad, Pakistan
5. Department of Prosthodontics and Implantology, College of Dentistry, King Faisal University, Saudi Arabia